Challenge Grifo Pro Handmade Gravel Tires Specs:700x38C, Folding, Tubeless Ready, Smart, PPS, 300TPI, Tanwall Easy-access drop-in pockets

Easy-access drop-in pockets

Junior helmets fit hat sizes to 6 3/8 through 7 1/9

sock-like fit while the Lightstrike midsole cushions your strides around the bases

The sporty racerback design adds a touch of style

Made with high-quality microfleece

Challenge Grifo Pro Handmade Gravel Tires Specs:700x38C, Folding, Tubeless Ready, Smart, PPS, 300TPI, Tanwall Easy-access drop-in pocketsThe best all around cyclocross tire ever created excels in wet or dry, soft packed, rocky and root infested courses, grass, and more The Grifo features fast rolling knobs and a center section that offers excellent pedaling and braking traction This handmade Tubeless ready clincher combines a supple, 300TPI SuperPoly casing with natural rubber tread for improved grip, confident cornering, and quick handing. Includes PPS, a Puncture Protection System